Automotive three-way catalyst is an important part of the automotive emission control system, and its main function is to convert harmful substances in automobile exhaust and reduce environmental pollution. However, after long-term use, the three-way catalyst may lose its activity due to carbon deposition, sulfidation, etc., affecting vehicle performance and exhaust emissions. So, how to tell if the automotive three-way catalyst needs to be cleaned?
First of all, we can look at the exhaust emissions of the car. If the exhaust gas is black or dark gray and accompanied by a strong odor, then the three-way catalyst may be clogged or failed. At this point, the three-way catalyst can be considered for cleaning or replacement.
Second, check your car's fuel consumption. If the car's fuel consumption increases significantly, but the mileage and driving habits do not change significantly, then it may be that the activity of the three-way catalyst decreases, resulting in insufficient fuel combustion, which increases fuel consumption. In this case, cleaning of the three-way catalyst can also be considered.
In addition, we can also determine whether the three-way catalyst needs to be cleaned by checking the car's oxygen sensor. The oxygen sensor is a key component in controlling the concentration of the car's fuel mixture, and if the oxygen sensor fails, then there may be a problem with the three-way catalyst. If the oxygen sensor fails, it is recommended to check and clean it in time.
In summary, to determine whether an automotive three-way catalyst needs to be cleaned, you can observe exhaust emissions, check fuel consumption, and check oxygen sensors. If a problem is found with the three-way catalyst, it is recommended to deal with it in time to ensure that the vehicle performance and exhaust emissions meet the standards. At the same time, regular maintenance and maintenance of the car is also an important measure to keep the three-way catalyst in good condition.